Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
kera
←
Finnish
keralla
(mention)
←
Ingrian
kera
(cognate)
←
Karelian
kera
(cognate)
←
Votic
kera
(cognate)
→
Finnish
kerake
(suffix)
→
Ingrian
kera
(cognate)